Someone that knows maths help me with this problem?

So I want to get posters of these two jwt images. I have printed the cosmic cliffs in A1 and I am wondering how big the deep feild image would be in comparison, so I can print them relative in size (while being viewed from earth/jwt).

They mention that the deep feild image is the size of a grain of sand held out at arms length. They also say that the cosmic cliffs is 7,600 light years away and 16 light years across. There is more information online.

Can anyone figure this out and tell me how much smaller I would have to print the deep field image (if it’s big enough to see ofcourse).